THE SWADDLE SACK IS DESIGNED TO BRIDGE THE GAP FROM SWADDLING TO SLEEPING SACK. When baby is ready to transition from a swaddle, but not ready for a sleeveless wearable blanket, the Swaddle Sack is a great option to (1) k...

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THE SWADDLE SACK IS DESIGNED TO BRIDGE THE GAP FROM SWADDLING TO SLEEPING SACK. When baby is ready to transition from a swaddle, but not ready for a sleeveless wearable blanket, the Swaddle Sack is a great option to (1) keep baby snug and warm, (2) allow baby the use of his or her arms, and (3) allow baby to self-soothe by sucking on his or her hands.

THE SWADDLE SACK IS PERFECT FOR BABIES WHO PREFER TO SLEEP WITH ARMS UP. The Swaddle Sack supports baby in a back sleeping position and allows for multiple arm and hand positions to help baby sleep better. The Swaddle Sack is an innovative design featuring uniquely shaped sleeves with foldover mitten cuffs to allow baby to have full access to hands to self-soothe and partial swaddle snugness to help reduce the startle reflex that can wake a sleeping baby.

THE SWADDLE SACK IS THE IDEAL TRANSITIONAL SWADDLE with partial suppression of the Moro (Startle) Reflex, and the arms up sleeve design is a SAFER SLEEP SOLUTION. If baby rolls over, the design allows baby to use their arms to lift their torso and reposition his or her head to get access to air. The AAP strongly recommends that parents stop restraining baby’s arms in a snug swaddle when baby shows signs of starting to roll over, and the Swaddle Sack is a safer option for babies after they’ve outgrown swaddling.

KEEP BABY COMFORTABLY WARM with the Swaddle Sack with sleeves. Many parents prefer the Swaddle Sack instead using a sleeveless sleeping sack, because when baby outgrows swaddling, baby may not be ready for a sleeveless wearable blanket. The lightweight breathable cotton knit fabric reduces risk of overheating.

The Swaddle Sack design provides an important innovation that allows caregiver two options for providing BABY ACCESS TO HANDS. The FOLDOVER MITTEN CUFFS MAY BE WORN OPEN OR CLOSED: (1) parents can open the cuffs, so baby can SELF-SOOTHE, or (2) parents can close the cuffs to PROTECT BABY FROM FACIAL SCRATCHES. The design allows baby to self-soothe which is important because self-soothing helps baby sleep better and longer.

The Swaddle Sack UNIQUELY SHAPED ARMS UP ¾ LENGTH SLEEVES are not full length, so baby’s arms will be close to body when mitten cuffs are closed for swaddle snugness. The patent pending sleeve design are not full length “by design.” When the mitten cuffs are closed and baby is placed in the Swaddle Sack, the uniquely shaped arms up design positions baby’s in a flexed, close-to-body, arms-up position, and shape and length of the sleeve helps partially suppress the Startle Reflex. Parents are encouraged to close the cuffs first, and then place baby in the sack. If the caregiver wants to allow baby to suck directly on hands, then open one or both of the mitten cuffs.

THE 2-WAY ZIPPER MAKES THE SWADDLE SACK EASY TO USE FOR THE CAREGIVER. The zipper has two zipper pulls – one at the neckline and one at the foot of the sack. The zipper zips down from the top to make it easy to place baby in the sack and zips up from the bottom to make it easy to check baby’s diaper. Parents are delighted with the 2-way zipper and the ease of use.

The Swaddle Sack middle section is slightly tapered to place modest pressure on baby’s tummy and provide swaddle snugness. The lower section is less spacious than a typical sleeping sack, and in turn, the Swaddle Sack provides some suppression of the Startle Reflex for the legs. The Hip healthy design allows baby's knees and hips to flex. The design complies with the International Hip Dysplasia Institute guidelines.

WINNER OF MUTLIPLE AWARDS including the Mom’s Choice Award, Parent’s Pick Award, and Tillywig Award. The Swaddle Sack is made from premium, stretchy cotton knit and exclusive designer prints. The premium cotton fabric is machine washable.

Swaddle Sack is a registered trademark of SwaddleDesigns. Patent Pending.



  • The TRANSITIONAL SWADDLE SACK allows baby to SELF-SOOTHE and promotes BETTER SLEEP and SAFER SLEEP. Perfect for babies who prefer to sleep with ARMS UP, babies who are starting to rollover, and babies able to break out of a traditional swaddle
  • LITTLE SLEEVES with BIG PURPOSE. Arms Up Swaddle with 1/2-length sleeves and mitten cuffs closed provide partial suppression of Startle Reflex to help baby SLEEP BETTER; if baby rolls onto tummy, baby can push up to access air for SAFER SLEEP
  • EASIEST way to move from a traditional swaddle to a wearable blanket. Transitional Swaddle Sack is not a tight swaddle nor a loose sack. Snug fitting and Hip Healthy design supports baby in natural position and flexed position to help baby feel secure
  • FOLDOVER MITTEN CUFFS MAY BE WORN OPEN OR CLOSED; Caregiver can open one or both cuffs, so baby can SELF-SOOTHE, or close the cuffs to PROTECT BABY FROM FACIAL SCRATCHES and provide partial suppression of startle reflex.
  • 100% Cotton. TOG 0.7 Soft stretchy cotton knit. 2-way zipper for easy diaper changes. Use baby weight to select size: Small 6-14 lbs 0-3 Mo; Medium 14-21 lbs 3-6 Mo; Large 21-24 lbs 6-9 Mo. Machine wash. Tumble dry. US Patent 11,812,795 WW patents online
  • The TRANSITIONAL SWADDLE SACK allows baby to SELF-SOOTHE and promotes BETTER SLEEP and SAFER SLEEP. Perfect for babies who prefer to sleep with ARMS UP, babies who are starting to rollover, and babies able to break out of a traditional swaddle
  • LITTLE SLEEVES with BIG PURPOSE. Arms Up Swaddle with 1/2-length sleeves and mitten cuffs closed provide partial suppression of Startle Reflex to help baby SLEEP BETTER; if baby rolls onto tummy, baby can push up to access air for SAFER SLEEP
  • EASIEST way to move from a traditional swaddle to a wearable blanket. Transitional Swaddle Sack is not a tight swaddle nor a loose sack. Snug fitting and Hip Healthy design supports baby in natural position and flexed position to help baby feel secure
  • FOLDOVER MITTEN CUFFS MAY BE WORN OPEN OR CLOSED; Caregiver can open one or both cuffs, so baby can SELF-SOOTHE, or close the cuffs to PROTECT BABY FROM FACIAL SCRATCHES and provide partial suppression of startle reflex.
  • 100% Cotton. TOG 0.7 Soft stretchy cotton knit. 2-way zipper for easy diaper changes. Use baby weight to select size: Small 6-14 lbs 0-3 Mo; Medium 14-21 lbs 3-6 Mo; Large 21-24 lbs 6-9 Mo. Machine wash. Tumble dry. US Patent 11,812,795 WW patents online

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